<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="root"></div>
    <script src="./vue3基础源码/vue3.js"></script>
    <script>
        const app = Vue.createApp({
            data(){
                return {
                    ishid:'compon-input'
                }
            },
            methods:{
                handleClick(){
                    this.ishid === "compon-input" ? this.ishid='compon-div':this.ishid="compon-input";
                }
            },
            template:
                        `   
                            <keep-alive>
                                <component :is="ishid" />
                            </keep-alive>
                            
                            <button @click="handleClick">点击</button>
                        `
        });

        app.component("compon-input",{
            template:`<input />`
        });

        app.component("compon-div",{
            template:`<div>div123</div>`
        })

        app.mount("#root");
    </script>
</body>
</html>